Term
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Definition
| A geographic region in which members of different species meet and mate, producing at least some offspring of mixed ancestry. |
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Term
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Definition
| A process in which natural selection strengthens prezygotic barriers to reproduction, thus reducing the chances of hybrid formation. Such a process is likely to occur only if hybrid offspring are less fit than members of the parent species. |
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Term
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Definition
| Weakening of reproductive barriers- the two species fuse. |
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Term
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Definition
| Continued production of hybrid individuals. |
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